The pass was named after George Lonngren, who died in 2006, the day after his 89th birthday. The spur road intended, according to John Larson with the Polson Museum, as a truck route but never saw the expected traffic due to declining forestry work.

As discovered by KXRO, currently the City of Hoquiam Government Comprehensive Use Plan has the pass listed as; Longren Pass, Longrenn’s Pass, and Lundgren Pass.